Who is Jack Teixeira, the man arrested over Pentagon files leak?

US air national guardsman has been identified as prime suspect in leak of classified documents

In photographs, Jack Teixeira, the 21-year-old air national guardsman who has been identified as the prime suspect in the leak of classified intelligence documents, is slim in his dark blue air force uniform. He is youthful looking, barely older than the teenage friends seen in the online group in which the classified documents were leaked.

On Thursday evening, the FBI arrested Teixeira and were searching his home. Video footage from a local television station showed him being led away in handcuffs.